Mary Madeline, or Madeline, as she was known, “Babe”’s elder daughter, was born 14th January 1892. She was the oldest of Timothy O’CALLAGHAN’s grandchildren to survive into adulthood.
A year after her mother “Babe”’s death, Madeline married Eugene “Gene” O’CALLAGHAN (no known relation), a painter (decorator) on 28th July 1931. She was 39-years-old.

There are no births recorded for this couple, confirming my Uncle Jack Hyland’s comment that they did not have children. They did reportedly raise Madeline’s sister’s daughter as their own.[1]
The couple lived in Madeline’s family home, next door to the DAVIS family, at 94 Wolfetone St.
Eugene died 26 January 1964. He was survived by Madeline, and I have not been able to establish when she died, suggesting she lived beyond current record availability (1969).
[1] One of Walter’s daughters told her nephew that Mairead, daughter of Kitty was adopted by Madeline and Eugene and raised as their child. Mairead lived in Blackpool.